Background:

Diclazuril (R-64433) is an anti-coccidial drug.

Diclazuril (R-64433) is a coccidiostat, the lambs treated with diclazuril showed an intense, persistent oocyst excretion, with average levels of 97.54 opg, considerably higher than those recorded in the animals treated with toltrazuril (p< 0.05)[1]. Diclazuril (R-64433) is effective against E. maxima later in its life cycle, subclinical intestinal lesions may be present for a short time after infection. Diclazuril (R-64433) was shown in studies to reduce lesion scores and improve performance and health of birds challenged with E. maxima[2].

参考文献:
[1]. Diaferia, M., et al., Efficacy of toltrazuril 5 % suspension (Baycox(R), Bayer) and diclazuril (Vecoxan(R), Janssen-Cilag) in the control of Eimeria spp. in lambs. Parasitol Res, 2013. 112 Suppl 1: p. 163-8.
[2]. http://www.huvepharma.com/products/view/190